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2
RESULTS

Media Type
2
texts
Availability
2
Always Available
Year
2
1918
1
1947
1
1939
1
1930
1
1929
1
1915
1
1913
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Topics & Subjects
1
Ciphers -- Handbooks, manuals, etc. Cryptography -- United States. World War, 1914-1918 -- Cryptography.
Collection
Creator
1
united states. army. american expeditionary forces. ; cryptology collection (university of pennsylvania)
1
united states.; army.; american expeditionary forces
Language
2
English
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